Alphosbe bem



(No Model.)

A. BENOIT.

WATCH.

No. 338,385. Patented Mar. 23, 1886.

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UNITED STATES PATENT OEEICEo ALPHONSE BENOIT, OF CHAUX-DE-FONDS, SVITZERLAND.

WATCH.

SPECIFICATION forming part of Letters Patent No. 338,385, dated Marsh 23, 1886.

Application filed September Q8, 1885.

Serial No. 178,363. (No model.) Patented in Belgium July 15, 1885, No. 69,361; in Flange#k July 2G, 1885, No.154,862, and in Italy August Q0, 1885, XIX, 18,702, XXXVII, 108.

To @ZZ whom it may concern.-

Beit known that I, ALPHoNsE BENOIT, of OhauX-de-Fonds, in Switzerland, have invented a new and useful Improvement in Watches, of which the following is a specitication.

My invention consists of an improved holder for the end stone upon the cock or bridge of the balance-wheel in watches.

In the accompanying drawings, Figure l is a longitudinal section through the cock A, the lower bridge, B, and the plate C. Fig. 2 is a plan view of the cock or bridge, and Fig. 8 a plan View of the back of them. Fig. 4 is a transverse section of the cock or bridge; and Fig. 5 shows how, after having lifted the regulator, the slide containing the end stone may be withdrawn.

The cock or bridge A is provided with protuberan ces A', of segmental shape, with undercut orbeveled edges surrounded with the split ring of the regulator E, which acts as a spring. The protuberances A are provided with a diametrical slit between them with beveled edges,

into which is passed a slider, D, carrying the end stone F, which is held adjacent to the perforated jewel G. After having placed the slider D into the slit of A the split ring of the regulator E is put iu place and prevents the slider being withdrawn or moving accidentally. The bottom plate, B, of the balance bridge or cock is shown as recessed into the watch-plate C, and having a dovetailed slide, H, carrying the end stone I, and inserted into a corresponding recess, so that the end jewel is held by such slide t the end of the perforated jewel LI.

I claim as my invention- 'l The combination, with the sd@ holding the end stone, of the vcock or br'idge having a groove, into which the slide is inserted', and a split ring for holding the slide in place, substantially as specified.

ALPHONSE BENOIT. 

